Automated screen cleaning

In an ideal world, the combined sewer overflow (CSO) screen cleaning system will be fully automatic. Sensors can be deployed to trigger automatic cleaning of the screen once the storm event has passed and water levels have reduced.

In a fully automatic system, there will be an installed booster pump, wash water storage tank, and the necessary control valves. When multiple Screen Blasters are deployed, these can either be run in sequence or run simultaneously. A sequenced system will need a suitable control system to actuate the valves for each cleaning head in the correct order, but it has the advantage of requiring a smaller pump duty as only one Screen Blaster operates at any given time.

Semi-automatic systems

A semi-automatic system will either have an integrated pump and wash water tank that can be manually activated or an external connection point to which a water bowser can be attached. This removes the need for a control system, pump, or any electrics to be installed on site at all.

In this way a mobile water bowser, with a suitable pump system, can be used to jet clean multiple CSO screens. All that needs to be done is to connect the water supply system from the external connection point and to let the system run through its cleaning cycle.